Question

Recrystallization is a product purification technique that is commonly used in many organic chemistry labs; if...

Recrystallization is a product purification technique that is commonly used in many organic chemistry labs; if you go on to take an organic chemistry course, you may use it to purify samples of aspirin or ibuprofen that you synthesize. Explain the theory behind recrystallization; that is, how does it function to purify a compound?

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Recrystallization is a method used to purify chemicals. It is performed by dissolving both impurities and a compound in an appropriate solvent. Then either the compound or impurities can be crystallised out of solution leaving the other behind.

Most typical situation is compound A is contaminated by a small amount of impurity B. There are various methods of purification and recrystallization is one of them. There are different recrystallization techniques as: single solvent recrystallization and multisolvent recrystallization.

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